EP3527727A1 - Fluid transfer device for transferring a flushing solution from a conduit - Google Patents

Abstract

The fluid transfer device for transferring a rinsing solution from a pipeline into a drainage device has a tubular core element with a first element end, wherein the first element end can be inserted into the drainage device, and with a second element end. The fluid transfer device also has a film tube with a first tube end, the first tube end being connectable to the pipeline in a fluid-conducting manner, and to a second hose end which is fluid-conductingly connectable to the second element end or which receives the second element end.

Description

The invention relates to a fluid transfer device for transferring a rinsing solution from a pipeline into a drainage device. The invention will be described in connection with the flushing of a drinking water system and may advantageously also be used with other pipelines carrying any fluid.

It is known, a drinking water system, which has a pipe and at least one tapping point for dispensing water or drinking water, with a chemical and / or biological solution (rinse solution) to flush (cleaning), in particular to counteract microbial contamination of the drinking water system. Although many rinsing solutions can be disposed of via an existing drain in the sewage system, an uncontrolled escape of the rinse solution into the environment may be undesirable.

From the DE 10 2016 103 675 A1 a flushing device is known, which is designed to receive a rinsing solution from at least one pipeline. The flushing device has a base element with an interior for receiving the flushing solution, a wall for limiting an interior space from the environment, and a conduit connection element permeable to the flushing solution. The line connection element is arranged in the wall and configured for connection to a supply line carrying the rinse solution. Between a core element which can be inserted into the supply line, and a pipe socket of the line connection element, the supply line can be clamped.

Task and solution

It is an object of the invention to simplify a transfer of a rinsing solution from a pipeline into a drainage device or to reduce the expenditure on equipment.

The object is achieved according to a first aspect of the invention by a fluid transfer device for transferring a rinsing solution from a pipeline into a drainage device. Further, the object is achieved by a method for operating the fluid transfer device (second aspect) and a use of the fluid transfer device (third aspect). Preferred developments form the respective subject matter of the dependent claims.

The fluid transfer device for transferring a rinse solution from a pipeline into a drain device comprises a tubular core element having a first element end insertable into the independent drain device and a second element end. Furthermore, the fluid transfer device has a foil tube with a first tube end that can be fluid-conductively connected to the independent tube, and with a second tube end, which can be fluid-conductively connected to the second element end or receives the second element end.

With the fluid transfer device of the first aspect, it is possible to reduce the expenditure on equipment for transferring rinsing solution from a pipeline into a drainage device. In addition, leakage of a particular gaseous part of the rinsing solution can be countered by damage to health of the user or third parties and / or the formation of stains by bleaching by the rinsing solution. If there is intentional air in the pipeline, either unintentionally or to increase the cleaning performance, then this air can relax on exit from the tap and lead to splashes. With the fluid transfer device these splashes can be counteracted advantageous.

The fluid transfer device according to the invention can be operated with different rinsing solutions. Preferably, however, the fluid transfer device is used with a chlorine dioxide solution. Aqueous chlorine dioxide solutions (ClO2) are used due to the high oxidizing power of chlorine dioxide, for example for disinfecting and deodorizing, especially in water treatment technology.

S1

Verbinden, vorzugsweise fluidleitend, des zweiten Elementendes mit dem zweiten Schlauchende, vorzugsweise Einsetzen des zweiten Elementendes in das zweite Schlauchende,

S2

Einsetzen des ersten Elementendes in die unabhängige Abflusseinrichtung, insbesondere gemeinsam mit dem zweiten Schlauchende insbesondere derart, dass das zweite Schlauchende zwischen der Abflusseinrichtung und dem ersten Elementende angeordnet ist,

S3

fluidleitendes Verbinden des ersten Schlauchendes mit der unabhängigen Rohrleitung,

S4

Überführen der Spüllösung aus der Rohrleitung in die Abflusseinrichtung.

The method according to the second aspect is for purging a pipeline and may be performed with a fluid transfer device according to the first aspect. The method comprises the following steps:

S1

Connecting, preferably fluid-conducting, the second element end to the second tube end, preferably inserting the second element end into the second tube end,

S2

Inserting the first element end into the independent drainage device, in particular together with the second hose end, in particular such that the second hose end is arranged between the drainage device and the first element end,

S3

fluid-conducting connection of the first hose end to the independent pipe,

S4

Transferring the rinsing solution from the pipeline into the drainage device.

With the method according to the second aspect, the effort for transferring rinsing solution from a pipeline into a drainage device can be reduced. The process can be used to counteract the escape of a gaseous part, potentially hazardous gases from the rinse solution, and / or the formation of stains by bleaching by the rinse solution. This is particularly advantageous when using a chlorine dioxide solution as a rinse solution.

In general, the method according to the invention for purging a pipeline is carried out by first supplying a flushing agent to the pipeline. The rinse may be any suitable rinse, depending on the particular application. The person skilled in the art will select the appropriate washing agent for the particular application in a suitable manner.

The detergent is ideally fed as possible at the beginning of the pipe system to be cleaned. This can be done batchwise or continuously. For example, if the pipeline of a private household to be cleaned, the detergent is advantageously fed directly after the municipal water meter. Mixing the rinsing agent with the water passing through the pipe results in the rinsing solution. Due to this dilution, the concentration of the active ingredient in the rinse itself is naturally higher than in the rinse. By choosing the concentration of the active ingredient in the rinse, the amount or volume flow of rinse used, and the volume flow of water to which the rinse is added, the initial concentration of the active ingredient in the rinse may be adjusted. During the passage of the rinse solution through the tubing and the associated cleaning, disinfection, deodorization or removal of biofilms, legionella and other germs within the tubing, the active ingredient is gradually consumed and its concentration in the rinse solution decreases.

When the cleaning, disinfection, deodorization or removal of biofilms, legionella and other germs in the pipeline is completed, essentially no further consumption of active ingredient takes place. In the case of a continuous addition of the rinsing agent and then the concentration of the active ingredient during the passage through the pipeline is no longer significantly reduced. According to the invention can thus be determined by comparison of the initial concentration of the active ingredient in the rinse solution (for example, directly after addition of the rinse and mixing with the guided through the pipe water over a defined mixing distance) with the concentration of the active ingredient after exiting the pipeline when the Cleaning, disinfection, deodorization or removal of biofilms, Legionella and other germs in the pipeline is completed and the rinsing can be stopped.

So that contact with the environment can be avoided when the flushing solution - often harmful to health and / or chemically aggressive - exits the pipe system, the fluid transfer device according to the invention is proposed. This is arranged between the tapping point (for example, a faucet of a washbasin), at which the rinse solution exits, and the drain (for example, the drain of a wash basin) such that the rinse solution does not come into contact with the environment. To avoid this contact of the rinse solution with the environment preferably completely, all taps of the pipe system to be cleaned are ideally provided with the fluid transfer device.

According to the third aspect, the fluid transfer device of the first aspect is used for transferring a purge solution from an independent piping to an independent drainage device. Thus, the effort to transfer rinse solution from a pipeline into a drainage facility can be reduced. Furthermore, leakage of a gaseous portion, potentially hazardous gases from the rinse solution, and / or stain formation by bleaching by the rinse solution may be encountered. This is particularly advantageous when using a chlorine dioxide solution as a rinse solution.

Preferred developments

Unless expressly excluded, several of the following preferred developments or embodiments of the invention can be combined together with the fluid transfer device according to the first aspect or with the method according to the second aspect.

Some draining means include a drain port permeable drain port and a fluid impermeable peripheral surface surrounding the drain port. According to a development of the fluid transfer device, the first element end is designed to urge the second end of the tube in the direction of the peripheral surface or to surround it circumferentially. For easier sealing, the second tube end may be clamped between the peripheral surface and the first element end. This can be advantageously countered an unwanted escape of rinsing solution or gaseous portions of the rinse solution.

Another development of the fluid transfer device further comprises a sealing element on the first element end of the core element, wherein the sealing element is designed for sealing the first element end or the second end of the hose in the outflow opening. The sealing element may be formed annularly around the first element end and / or disposed adjacent to the first element end on an outer surface of the core element. The sealing element may form a portion of the core element adjacent the first element end. The sealing element may be formed with an elastomer, which is preferably materially connected to the outer surface of the core element. Preferably, both the sealing element and the core element are formed with elastomer. The sealing element can be configured to exert a restoring force on the drainage device, its circumferential surface and / or the film tube as a result of elastic deformation. The sealing element may be configured to abut against the drainage device, on its peripheral surface or on the film tube. Adjacent to the first element end, the wall thickness of the core element relative to the rest of the core element may be thicker, in particular for a restoring force sufficient to seal the fluid transfer device from the environment. This can be advantageously countered an unwanted escape of rinsing solution or gaseous portions of the rinse solution.

In a further preferred embodiment of the fluid transfer device whose core element is rotationally symmetrical or conical or cylindrical. The core member may have a wall which defines a channel of the core member which can guide the independent rinse solution. Adjacent to the first end of the element can be arranged a circumferential collar which can assist in the sealing in the drainage device. With the mentioned designs, the production costs for the core element can be advantageously reduced.

According to another development of the fluid transfer device, the film tube has a sampling device for taking a sample of the Rinse on. Rinsing solution can be removed from the interior of the film tube by the sampling device, which can be closed in particular. A tube of the rinsing solution sampling device may extend through the foil tube into the environment and / or may be resealable. The tube may have a valve which seals the interior of the film tube from the environment. At least one sealing disc can be inserted over the tube, which can be urged against the film tube in order to seal the sampling device or the film tube from the environment. Preferably, the sampling device for removing rinsing solution with a removal means, a removal device or a disposable syringe connectable. Advantageously, rinsing solution can be removed from the film tube by the sampling device in order subsequently to examine the constituents or composition of the rinsing solution.

A preferred sampling device has a tube with an external thread. The tube may have a valve which seals the interior of the film tube from the environment, or may be closed with a stopper. Between two sealing discs of the sampling device, which are inserted over the tube, the film tube can be arranged, which has a hole. One of the sealing washers can be supported by a support disk. With a mother of the sampling device, which can be screwed onto an external thread of the tube, the sealing discs can be urged to each other. The thus designed sampling device is advantageously independent of the film tube and can be reused.

In another preferred embodiment of the fluid transfer device, the second tube end extends beyond the second element end at least to the first element end when the core element is received by the second tube end. In this embodiment, the core element may urge the second end of the hose against the drainage device or may be applied to the drainage device. In this way, advantageously, the sealing of the fluid transfer device with respect to the environment can be improved.

In a further development of the method of the second aspect (operating method), the fluid-conducting connection of the first hose end to the pipe takes place by slipping the first hose end over one end of the independent pipe. Thus, a sealing of the fluid transfer device from the environment can be simplified.

According to another development of the operating method, the insertion of the first element end into the drainage device takes place such that the first element end is stretched together with the second hose end into the drainage device, so that the second hose end is arranged between the drainage device and the first element end. Thus, the sealing of the fluid transfer device from the environment can be simplified.

S5

Umschlingen des ersten Schlauchendes mit einem Schlingmittel derart, dass das erste Schlauchende an dem Ende der Rohrleitung anliegt.

A preferred embodiment of the method of operation also includes the following step:

S5

Looping the first end of the hose with a looping means such that the first end of the hose rests against the end of the pipeline.

As Schlingmittel can serve a cable tie, which can be pulled around the first end of the hose. Thus, the sealing of the fluid transfer device from the environment can be improved.

S6

Quetschen des Folienschlauchs unterhalb der Probeentnahmeeinrichtung, damit die Spüllösung sich innerhalb des Folienschlauchs ansammelt,

S7

Entnehmen von Spüllösung durch die Probeentnahmeeinrichtung, insbesondere mit einem Entnahmemittel.

In another development, the operating method also has the following steps:

S6

Squeezing the film tube below the sampling device so that the rinse solution accumulates within the film tube,

S7

Removal of rinsing solution by the sampling device, in particular with a removal means.

As a sampling means can serve a disposable syringe. Step S7 can advantageously take place during purging. Step S7 is preferably carried out only when so much rinsing solution has accumulated in the squeezed film tube that its level reaches as far as the sampling device. Subsequently, the rinse solution can be examined.

S8

Verbinden, insbesondere fluidleitend, eines Entnahmemittels mit der Probeentnahmeeinrichtung, insbesondere vor Schritt S7.

Preferably, in this development of the operating method, the following step can also be carried out:

S8

Connecting, in particular fluid-conducting, a removal means with the sampling device, in particular before step S7.

In particular, when a disposable syringe serves as removal means, this development allows a convenient removal of rinsing solution. Also, an undesirable leakage of rinse solution into the environment can be encountered.

According to a development of the use of the third aspect, the transfer of the rinsing solution into the independent drainage device takes place directly or without a rinsing device between the fluid transfer device or its core element and the drainage device. As a result, the expenditure on equipment for transferring the rinsing solution into the independent drainage device can be reduced.

embodiments

Figur 1

teilweise schematisch und perspektivisch ein Ausführungsbeispiel der Fl uidüberführungsvorrichtung,

Figur 2

teilweise schematisch und perspektivisch ein anderes Ausführungsbeispiel der Fluidüberführungsvorrichtung mit Probeentnahmeinrichtung,

Figur 3

teilweise schematisch und perspektivisch eine beispielhafte Probeentnahmeinrichtung, die mit dem Folienschlauch des Ausführungsbeispiels der Figur 2 kombiniert werden könnte,

Figur 4

teilweise schematisch einen Schnitt durch ein beispielhaftes Kernelement mit Dichtelement.

Further advantages, features and embodiments of the present invention can be taken from the embodiments. Show it:

FIG. 1

partially schematically and in perspective an embodiment of the fluid transfer device,

FIG. 2

partly schematically and in perspective another embodiment of the fluid transfer device with sampling device,

FIG. 3

partially schematically and in perspective an exemplary sampling device, with the film tube of the embodiment of FIG. 2 could be combined

FIG. 4

partially schematically a section through an exemplary core element with sealing element.

FIG. 1 In the state shown, the fluid transfer device for transferring rinsing solution from a pipeline 31 into a drainage device 32 is prepared in a partially schematic and perspective manner. The drainage device may be part of a wash basin. The second tube end 7 is not shown for better recognition of the conical core element 2. The core element may be received by the second end of the hose. The second end of the hose may extend to the first end of the element 3 or beyond. The length of the film tube 5 is adapted to the distance between the pipeline and the drainage device. The core element is dimensioned so that its first element end 3 can be positively inserted into the drainage device. The core element may have a sealing element for better sealing.

The core member 2 is located adjacent to the drainage means but not yet inserted into the drainage means, i. Step S2 is not yet executed. The core element is fluid-conductively connected to the film tube 5. The film tube or its first hose end 6 is already fluidly connected to the pipe. If the core element, possibly together with the second end of the tube, is inserted into the drainage device, then rinsing solution can be transferred from the pipeline into the drainage device. In this case, an undesirable escape of rinsing solution into the environment can be encountered.

FIG. 2 shows partly schematically and in perspective another embodiment of the fluid transfer device 1 with sampling device 9.

Deviating from FIG. 1 the first element end of the core element 2 and the second end of the hose are already inserted or plugged into the drainage device 32, ie step S2 is executed. The first element end 4 of the core element is visible through the film tube 5. The second end of the hose extends beyond the first end of the element. The first hose end 6 is slipped over the pipe 31. A looping means 36 is pulled around the first end of the hose and the pipe. Furthermore, the fluid transfer device has a sampling device 9, which extends through the wall of the film tube 5.

FIG. 3 shows partially schematically and in perspective an exemplary sampling device 9, with the film tube of the embodiment of FIG. 2 could be combined. The sampling device has a tube 10 with an external thread. The tube may have a valve which seals the interior of the film tube from the environment. Between two sealing discs 11a, 11b, which are inserted over the tube, the film tube can be arranged, which has a hole. One of the sealing washers 11 a can be supported by a support disk 12. With a nut 13 of the sampling device, the sealing discs 11a, 11b are urged to each other. The thus designed sampling device is advantageously independent of the film tube and can be reused.

FIG. 4 partially shows schematically a section through an exemplary core element 2 with sealing element 8. The core element has a conical shape and a wall bounded an interior, which serves to guide the rinse solution. The Sealing element is disposed adjacent to the first element end 3 and surrounds the lower opening of the core element. For better recognition, the sealing element is shown thicker than is required for its function.

Below the sealing element, the discharge device 32 is shown in dashed lines, in which the core element can be inserted. The drain opening 33 is surrounded by a peripheral surface 34 or bounded. The core element or its first element end is designed to bear against the circumferential surface 34 in sections. For easier sealing, the second tube end may be clamped between the peripheral surface and the first element end.

LIST OF REFERENCE NUMBERS

1

Fluid transfer device

2

core element

3

first element end of the core element

4

second element end of the core element

5

film tube

6

first hose end of the film tube

7

second hose end of the film tube

8th

Sealing element of the core element

9

Sampling device

10

Tube of the sampling device

11, 11a, 11b

Sealing disk of the sampling device

12

Support disk of the sampling device

13

Mother of the sampling device

31

pipeline

32

outflow device

33

Outflow opening of the drainage device

34

Peripheral surface of the drainage device

35

extraction means

36

Schlingmittel

Claims (15)

Fluid transfer device (1) for transferring a rinsing solution from a pipeline (31) into a discharge device (32), the fluid transfer device comprising: a tubular core element (2) having a first element end (3), the first element end being insertable into the drainage device, and a second element end (4), and a film tube (5) having a first tube end (6), the first tube end being fluid conductively connectable to the tube, and a second tube end (7) fluidly connectable to the second element end or receiving the second element end. The fluid transfer device (1) of claim 1, wherein the drain means comprises a drain port permeable to the purge solution and a fluid impermeable peripheral surface (34) surrounding the drain port, wherein the first end of the element is configured to urge the second end of the hose towards the peripheral surface or to surround the circumferential surface. Fluid transfer device (1) according to one of the preceding claims, which further comprises a sealing element (8) on the first element end of the core element, wherein the sealing element is designed for sealing the first element end in the discharge opening. Fluid transfer device (1) according to one of the preceding claims, wherein the core element (2) is rotationally symmetrical or conical or cylindrical. Fluid transfer device (1) according to one of the preceding claims, wherein the film tube has a sampling device (9) for removing a sample of the rinsing solution. Fluid transfer device (1) according to claim 5, wherein the sampling device with a removal means (35) is connectable. A fluid transfer device (1) according to any one of the preceding claims, wherein the second tube end extends beyond the second end of the element to the first Element end extends, in particular when the core element (2) is received in the second end of the hose. Method for operating a fluid transfer device (1) according to one of the preceding claims, comprising the steps S1, possibly fluid-conducting, connecting the second element end (4) to the second tube end (7), preferably inserting the second element end into the second tube end, S2 insertion of the first element end (3) into the drainage device, in particular together with the second hose end, in particular such that the second hose end is arranged between the drainage device (32) and the first element end, S3 fluid-conducting connection of the first hose end (6) to the pipe (31), S4 transferring the rinsing solution from the pipeline into the drainage device. The method of claim 8, wherein the fluid-conducting connecting the first end of the hose to the pipeline is carried out by slipping the first end of the hose over one end of the pipeline. The method of claim 8 or 9, wherein the insertion of the first element end into the drainage device is such that the first element end is stretched together with the second hose end in the drain device, so that the second hose end between the drain device and the first element end is arranged. Method according to one of claims 8 to 10, comprising the following step: S5 wrapping the first end of the hose with a sling (36) such that the first end of the hose abuts the end of the pipe. Method according to one of claims 8 to 11 with a fluid transfer device (1) according to claim 5, comprising the steps S6 squeezing the film tube below the sampling device so that the rinse solution accumulates within the film tube, S7 removal of rinsing solution by the sampling device, in particular with a sampling means. The method of claim 12, wherein prior to step S7, a sampling means is fluidly connected to the sampling device (step S8). Use of a fluid transfer device (1) according to one of claims 1 to 7 for transferring a rinsing solution from a pipeline into a drainage device. Use of a fluid transfer device (1) according to claim 14, wherein the transfer of the rinsing solution into the drainage device takes place directly or without a rinsing device between the core element and the drainage device.

Images